Published SOP - Jun 2021

As part of our daily planning processes within the ESO control room, the control room strategy team produces a System Operating Plan (SOP) at key demand peaks or troughs throughout the day, at what we call a Cardinal Point (CP). Prior to each CP the Strategy team hand over the relevant SOP to the real-time Energy team, who then use this plan to take real-time operational decisions to balance the electricity system. The SOP is a snapshot of key information that is available to the ENCC at that time of its creation and based on this information provides a flexible strategic plan to ensure the ESO fulfills all its obligations to balance the system.

CKAN Data API

Access resource data via a web API with powerful query support.
Further information in the main CKAN Data API and DataStore documentation.

The Data API can be accessed via the following actions of the CKAN action API.

Query
`https://api.neso.energy/api/3/action/datastore_search`
Query (via SQL)
`https://api.neso.energy/api/3/action/datastore_search_sql`

Query example (first 5 results)
`https://api.neso.energy/api/3/action/datastore_search?resource_id=d76ebe04-5139-4cf8-bc93-2fb8f5d8c310&limit=5`
Query example (via SQL statement)
`https://api.neso.energy/api/3/action/datastore_search_sql?sql=SELECT * from "d76ebe04-5139-4cf8-bc93-2fb8f5d8c310" LIMIT 5`

A simple ajax (JSONP) request to the data API using jQuery.

var data = {
  resource_id: 'd76ebe04-5139-4cf8-bc93-2fb8f5d8c310', // the resource id
  limit: 5 // get 5 results
};
$.ajax({
  url: 'https://api.neso.energy/api/3/action/datastore_search',
  data: data,
  dataType: 'jsonp',
  success: function(data) {
    alert('Total results found: ' + data.result.total)
  }
});

A simple ajax (JSONP) request to the data API using jQuery.

import urllib2
  url = 'https://api.neso.energy/api/3/action/datastore_search?resource_id=d76ebe04-5139-4cf8-bc93-2fb8f5d8c310&limit=5'
  fileobj = urllib2.urlopen(url)
  print fileobj.read()

Download (CSV)

Data Explorer

Table Information

sop_datetime

Title	SOP Datetime
Type	datetime
Description	UTC Time and date that the SOP was created for
Comment	N/A
Example	2020-08-17T19:25:00Z
Unit	UTC ISO 8601

report_date

Title	Report Date
Type	date
Description	Date that the SOP was created
Comment
Example	2020-10-13T00:00:00.000Z
Unit	N/A

latest_version

Title	Latest Version
Type	integer
Description	Version number
Comment	Numbers start at 1 and increase
Example	1
Unit	N/A

latest_status

Title	Latest Status
Type	string
Description	Status of SOP
Comment	Should be final
Example	Final
Unit	N/A

cardinal_point

Title	Cardinal Point
Type	string
Description	Electricity demand fluctuates during a day depending on how much energy people, businesses and industries are using at that moment in time. As this electricity demand goes up and down we get characteristic peaks and troughs, with some of these peaks and troughs appearing every single day at similar times. These we call cardinal points and are the points during the day that we forecast demand for.
Comment	N/A
Example	4A
Unit	N/A

customer_demand_forcast

Title	Customer Demand Forcast (CDF)
Type	integer
Description	National 5-minute spot demand
Comment	Calculated by ESO
Example	35477
Unit	MW

station_transformer

Title	Station Transformer (STX)
Type	integer
Description	Assumed total national station demand
Comment	Calculated by ESO
Example	500
Unit	MW

dsbr

Title	DSBR
Type	string
Description	Demand Side Balancing Reserve
Comment	Not Valid Anymore
Example	N/A
Unit	MW

total_sop_demand

Title	Total (SOP Demand)
Type	integer
Description	Sum of Customer demand and Station demand
Comment	Automatically calculated by ESO systems
Example	29175
Unit	MW

standing_reserve_requirement

Title	Standing Reserve Requirement (SRR)
Type	integer
Description	Standing reserve has now been replaced by Short Term Operating Reserve (STOR). This is a fixed value depending on the time of day and year.
Comment	Calculated by ESO
Example	1800
Unit	MW

standing_reserve_availability

Title	Standing Reserve Availability (SRA)
Type	integer
Description	The amount of STOR that is usable is the sum of the STOR declared available
Comment	Calculated by ESO
Example	2783
Unit	MW

standing_reserve_shortfall

Title	Standing Reserve Shortfall (SRS)
Type	integer
Description	The standing reserve shortfall is the difference between the STOR requirement minus the STOR usable indicates if there is a standing reserve shortfall
Comment	Automatically calculated by ESO systems
Example	222
Unit	MW

standing_reserve_excess

Title	Standing Reserve Excess (SRE)
Type	integer
Description	Indicates if there is an excess of Standing Reserve. Calculated by SRR - SRA.
Comment	Automatically calculated by ESO systems
Example	2783
Unit	MW

standing_res_wind_adj

Title	Standing Res Wind Adj (WSRR)
Type	integer
Description	This is an automatically calculated value, used to adjust the standing reserve requirement figure to take into account the potential wind forecasting error
Comment	Automatically calculated by ESO systems
Example	222
Unit	MW

net_positive_regulating_reserve

Title	Net Positive Regulating Reserve (PRG)
Type	integer
Description	Regulating reserve is designed to cover for expected levels of plant loss plus demand forecast error that occurs for a specified cardinal point between the final SOP production time and real time.
Comment	Calculated by ESO
Example	123
Unit	MW

positive_reg_res_wind_adj

Title	Positive Reg Res Wind Adj (WPRR)
Type	integer
Description	This is an automatically calculated value to take into account the potential wind forecasting error.
Comment	Automatically calculated by ESO systems
Example	123
Unit	MW

reserve_for_response

Title	Reserve For Response (PRE)
Type	integer
Description	The reserve for response is the amount of reserve that needs to be allocated to synchronised generators so they can be pulled back and instructed to hold frequency response.
Comment	Automatically calculated by ESO systems after all contracted response is subtracted from requirement
Example	356
Unit	MW

total_positive_reserve

Title	Total Positive Reserve (SCS)
Type	integer
Description	Simple calculation of PRG + PRE.
Comment	Automatically calculated by ESO systems
Example	567
Unit	MW

percentage_of_standing_reserve_excess

Title	0% Percentage of Standing Reserve Excess
Type	integer
Description	This accounts for wind and demand forecast errors. The current requirement is set to 1300MW
Comment	Calculated by ESO
Example	0
Unit	MW

net_negative_regulating_reserve

Title	Net Negative Regulating Reserve (NRG)
Type	integer
Description	The negative reserve for response is the amount of reserve that needs to be allocated to synchronised generators to allow them to be picked up from SEL to hold high frequency response
Comment	Automatically calculated by ESO systems after all contracted response is subtracted from requiremen
Example	123
Unit	MW

negative_reg_res_wind_adj

Title	Negative Reg Res Wind Adj (WNRR)
Type	integer
Description	This is an automatically calculated value to take into account the potential wind forecasting error.
Comment	Automatically calculated by ESO systems (Currently set at 0MW)
Example	0
Unit	MW

negative_response_reserve

Title	Negative Response Reserve (NRS)
Type	integer
Description	Automatically calculated by ESO systems after all contracted response is subtracted from requirement
Comment	Automatically calculated by ESO systems (Currently set at 0MW)
Example	0
Unit	MW

total_negative_reserve

Title	Total (Negative Reserve)
Type	integer
Description	Simple calculation of NRG + NRS.
Comment	Automatically calculated by ESO systems
Example	456
Unit	MW

maximum_loss_generation

Title	Maximum Loss (Generation)
Type	integer
Description	The maximum generation loss is determined by the maximum credible loss on the system at the CP for this SOP
Comment	Manually adjusted by ESO
Example	680
Unit	MW

maximum_loss_demand

Title	Maximum Loss (Demand)
Type	integer
Description	The maximum demand loss is determined by the maximum credible demand loss on the system at the CP for this SOP
Comment	Manually adjusted by ESO
Example	560
Unit	MW

positive_residual

Title	Positive Residual (EMX - (SOP Demand + Positive Reserve))
Type	integer
Description	Indicates by how much the ESO has met its positive margin requirements in terms of SOP demand plus reserve requirements.
Comment	Calculated by ESO systems and includes any manual adjustments made by ENCC if required
Example	555
Unit	MW

imbalance

Title	Imbalance (SOP Demand - EOL)
Type	integer
Description	Indicates how many Bids or Offers the ESO expect to be required to meet SOP demand.
Comment	Calculated by ESO systems
Example	8658
Unit	MW

negative_residual

Title	Negative Residual (SOP Demand - (EMI + Negative Reserve))
Type	integer
Description	Indicates by how much the ESO has met its negative margin requirements in terms of SOP demand plus reserve requirements.
Comment	Calculated by ESO systems and includes any manual adjustments made by ENCC if required
Example	15391
Unit	MW

sop_report_creation_time_gmt

Title	SOP Report Creation Time GMT
Type	datetime
Description	Time the SOP was created
Comment	Automatic
Example	2020-08-17T19:25:00Z
Unit	UTC ISO 8601

sop_d_and_c_time_gmt

Title	SOP D and C Time GMT
Type	datetime
Description	Time that the demand and contraint process was run
Comment	Automatic
Example	2020-08-17T19:25:00Z
Unit	UTC ISO 8601

contingency_requirement

Title	Contingency Requirement
Type	integer
Description	A margin of plant that will be maintained in a state to be capable of synchronising in sufficient time to achieve full output for the relevant Cardinal Point.
Comment	Automatically calculated by ESO systems. (Usually 0MW at 4 hours ahead stage)
Example	50
Unit	MW

operating_margin_surplus

Title	Operating Margin Surplus (shortfall)
Type	integer
Description	Provides an indication of whether the contingency requirement for the cardinal point is satisfied
Comment	Automatically calculated by ESO systems
Example	168
Unit	MW

trigger_level

Title	Trigger Level (shortfall)
Type	integer
Description	This value is used in conjunction with the Contingency Requirement. If the Contingency Requirement is not satisfied by the available plant then based on these trigger levels the ESO will consider whether to issue an Electricity Margin Notification (EMN) to the market. Variable value depending on time of year and day.
Comment	Automatically calculated by ESO systems
Example	-450
Unit	MW

no1_temx

Title	NO1_temx
Type	integer
Description	All the non-wind BMUs in the north dispatch zone. Summation of expected maximum MW availabilities for each BMU running. The figures are derived from the Maximum Export Limit (MEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins.
Comment	Automatically calculated by ESO systems
Example	10715
Unit	MW

no1_teol

Title	NO1_teol
Type	integer
Description	All the non-wind BMUs in the north dispatch zone. Summation of expected actual output of each BMU running. The figures are derived from the Physical Notifications (PNs) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Automatically calculated by ESO systems
Example	10472
Unit	MW

no1_temi

Title	NO1_temi
Type	integer
Description	All the non-wind BMUs in the north dispatch zone. Summation of the expected minimum MW achievable for each BMU running. The figures are derived from the Stable Export Level (SEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Automatically calculated by ESO systems
Example	7049
Unit	MW

nw1_temx

Title	NW1_temx
Type	integer
Description	All the wind BMUs forecast output in the north dispatch zone. Summation of expected maximum MW availabilities for each BMU running. The figures are derived from the Maximum Export Limit (MEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins.
Comment	Automatically calculated by ESO systems
Example	485
Unit	MW

nw1_teol

Title	NW1_teol
Type	integer
Description	All the wind BMUs forecast output in the north dispatch zone. Summation of expected actual output of each BMU running. The figures are derived from the Physical Notifications (PNs) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Automatically calculated by ESO systems
Example	485
Unit	MW

nw1_temi

Title	NW1_temi
Type	integer
Description	All the wind BMUs forecast output in the north dispatch zone. Summation of the expected minimum MW achievable for each BMU running. The figures are derived from the Stable Export Level (SEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Automatically calculated by ESO systems
Example	485
Unit	MW

so1_temx

Title	SO1_temx
Type	integer
Description	All the non-wind BMUs in the south dispatch zone. Summation of expected maximum MW availabilities for each BMU running. The figures are derived from the Maximum Export Limit (MEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins.
Comment	Automatically calculated by ESO systems
Example	8184
Unit	MW

so1_teol

Title	SO1_teol
Type	integer
Description	All the non-wind BMUs in the south dispatch zone. Summation of expected actual output of each BMU running. The figures are derived from the Physical Notifications (PNs) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Automatically calculated by ESO systems
Example	7596
Unit	MW

so1_temi

Title	SO1_temi
Type	integer
Description	All the non-wind BMUs in the south dispatch zone. Summation of the expected minimum MW achievable for each BMU running. The figures are derived from the Stable Export Level (SEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Automatically calculated by ESO systems
Example	4443
Unit	MW

sw1_temx

Title	SW1_temx
Type	integer
Description	All the wind BMUs forecast output in the south dispatch zone. Summation of expected maximum MW availabilities for each BMU running. The figures are derived from the Maximum Export Limit (MEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins.
Comment	Automatically calculated by ESO systems
Example	360
Unit	MW

sw1_teol

Title	SW1_teol
Type	integer
Description	All the wind BMUs forecast output in the south dispatch zone. Summation of expected actual output of each BMU running. The figures are derived from the Physical Notifications (PNs) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Automatically calculated by ESO systems
Example	360
Unit	MW

sw1_temi

Title	SW1_temi
Type	integer
Description	All the wind BMUs forecast output in the south dispatch zone. Summation of the expected minimum MW achievable for each BMU running. The figures are derived from the Stable Export Level (SEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Automatically calculated by ESO systems
Example	360
Unit	MW

britned_temx

Title	BRITNED_temx
Type	integer
Description	Expected flow on the BritNed Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	667
Unit	MW

britned_teol

Title	BRITNED_teol
Type	integer
Description	Expected flow on the BritNed Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	667
Unit	MW

britned_temi

Title	BRITNED_temi
Type	integer
Description	Expected flow on the BritNed Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	667
Unit	MW

ewic_temx

Title	EWIC_temx
Type	integer
Description	Expected flow on East West Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	86
Unit	MW

ewic_teol

Title	EWIC_teol
Type	integer
Description	Expected flow on East West Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	86
Unit	MW

ewic_temi

Title	EWIC_temi
Type	integer
Description	Expected flow on East West Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	86
Unit	MW

france_temx

Title	FRANCE_temx
Type	integer
Description	Expected flow on IFA Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	379
Unit	MW

france_teol

Title	FRANCE_teol
Type	integer
Description	Expected flow on IFA Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	379
Unit	MW

france_temi

Title	FRANCE_temi
Type	integer
Description	Expected flow on IFA Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	379
Unit	MW

intifa2_temx

Title	INTIFA2_temx
Type	integer
Description	Expected flow on IFA2 Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	123
Unit	MW

intifa2_teol

Title	INTIFA2_teol
Type	integer
Description	Expected flow on IFA2 Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	123
Unit	MW

intifa2_temi

Title	INTIFA2_temi
Type	integer
Description	Expected flow on IFA2 Interconnector based on the latest submitted reference program
Comment	Market provided data
Example	123
Unit	MW

moyle_temx

Title	MOYLE_temx
Type	integer
Description	Expected flow on the Moyle interconnector based on the latest submitted reference program
Comment	Market provided data
Example	40
Unit	MW

moyle_teol

Title	MOYLE_teol
Type	integer
Description	Expected flow on the Moyle interconnector based on the latest submitted reference program
Comment	Market provided data
Example	40
Unit	MW

moyle_temi

Title	MOYLE_temi
Type	integer
Description	Expected flow on the Moyle interconnector based on the latest submitted reference program
Comment	Market provided data
Example	40
Unit	MW

nemo_temx

Title	NEMO_temx
Type	integer
Description	Expected flow on the NEMO interconnector based on the latest submitted reference program
Comment	Market provided data
Example	123
Unit	MW

nemo_teol

Title	NEMO_teol
Type	integer
Description	Expected flow on the NEMO interconnector based on the latest submitted reference program
Comment	Market provided data
Example	123
Unit	MW

nemo_temi

Title	NEMO_temi
Type	integer
Description	Expected flow on the NEMO interconnector based on the latest submitted reference program
Comment	Market provided data
Example	123
Unit	MW

ps_temx

Title	PS_temx
Type	integer
Description	Pump Storage units. Summation of expected maximum MW availabilities for each BMU running. The figures are derived from the Maximum Export Limit (MEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins.
Comment	Market provided data
Example	300
Unit	MW

ps_teol

Title	PS_teol
Type	integer
Description	Pump Storage units. Summation of expected actual output of each BMU running. The figures are derived from the Physical Notifications (PNs) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Market provided data
Example	252
Unit	MW

ps_temi

Title	PS_temi
Type	integer
Description	Pump Storage units. Summation of the expected minimum MW achievable for each BMU running. The figures are derived from the Stable Export Level (SEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Market provided data
Example	150
Unit	MW

sto_temx

Title	STO_temx
Type	integer
Description	Short Term Operating Reserve (STOR).
Comment	Manually adjusted by ESO if any excess is used to offset Regulating Reserve
Example	123
Unit	MW

sto_teol

Title	STO_teol
Type	integer
Description	Short Term Operating Reserve (STOR).
Comment	Manually adjusted by ESO if any excess is used to offset Regulating Reserve
Example	123
Unit	MW

sto_temi

Title	STO_temi
Type	integer
Description	Short Term Operating Reserve (STOR).
Comment	Manually adjusted by ESO if any excess is used to offset Regulating Reserve
Example	123
Unit	MW

sb_temx

Title	SB_temx
Type	integer
Description	Small Balancing Mechanism Units (BMUs). Summation of expected maximum MW availabilities for each BMU running. The figures are derived from the Maximum Export Limit (MEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins.
Comment	Automatically calculated by ESO systems
Example	181
Unit	MW

sb_teol

Title	SB_teol
Type	integer
Description	Small Balancing Mechanism Units (BMUs). Summation of expected actual output of each BMU running. The figures are derived from the Physical Notifications (PNs) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Automatically calculated by ESO systems
Example	180
Unit	MW

sb_temi

Title	SB_temi
Type	integer
Description	Small Balancing Mechanism Units (BMUs). Summation of the expected minimum MW achievable for each BMU running. The figures are derived from the Stable Export Level (SEL) considering any restrictions due to system constraints. This includes any additional units scheduled to meet required margins at SEL.
Comment	Automatically calculated by ESO systems
Example	125
Unit	MW

total_temx

Title	total_temx
Type	integer
Description	Sum off all emx values
Comment	Automatically calculated by ESO systems
Example	21216
Unit	MW

total_teol

Title	total_teol
Type	integer
Description	Sum of all eol values
Comment	Automatically calculated by ESO systems
Example	20337
Unit	MW

total_temi

Title	total_temi
Type	integer
Description	Sum of all emi values
Comment	Automatically calculated by ESO systems
Example	13659
Unit	MW

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Published SOP - Jun 2021

CKAN Data API

Data Explorer

Data Explorer

Table Information

sop_datetime

report_date

latest_version

latest_status

cardinal_point

customer_demand_forcast

station_transformer

dsbr

total_sop_demand

standing_reserve_requirement

standing_reserve_availability

standing_reserve_shortfall

standing_reserve_excess

standing_res_wind_adj

net_positive_regulating_reserve

positive_reg_res_wind_adj

reserve_for_response

total_positive_reserve

percentage_of_standing_reserve_excess

net_negative_regulating_reserve

negative_reg_res_wind_adj

negative_response_reserve

total_negative_reserve

maximum_loss_generation

maximum_loss_demand

positive_residual

imbalance

negative_residual

sop_report_creation_time_gmt

sop_d_and_c_time_gmt

contingency_requirement

operating_margin_surplus

trigger_level

no1_temx

no1_teol

no1_temi

nw1_temx

nw1_teol

nw1_temi

so1_temx

so1_teol

so1_temi

sw1_temx

sw1_teol

sw1_temi

britned_temx

britned_teol

britned_temi

ewic_temx

ewic_teol

ewic_temi

france_temx

france_teol

france_temi

intifa2_temx

intifa2_teol

intifa2_temi

moyle_temx

moyle_teol

moyle_temi

nemo_temx

nemo_teol

nemo_temi

ps_temx

ps_teol

ps_temi

sto_temx

sto_teol

sto_temi

sb_temx

sb_teol

sb_temi

total_temx

total_teol